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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#include "MultitouchInputDevice.h"
#include "TouchEvent.h"
#include "Player.h"
#include "AVGNode.h"
#include "TouchStatus.h"
#include "../base/Logger.h"
#include "../base/ObjectCounter.h"
#include "../base/Exception.h"
using namespace std;
namespace avg {
MultitouchInputDevice::MultitouchInputDevice()
: IInputDevice(EXTRACT_INPUTDEVICE_CLASSNAME(MultitouchInputDevice))
{
m_TouchArea = ConfigMgr::get()->getSizeOption("touch", "area");
if (m_TouchArea.x == 0) {
m_TouchArea = Player::get()->getScreenResolution();
}
m_TouchOffset = ConfigMgr::get()->getSizeOption("touch", "offset");
}
MultitouchInputDevice::~MultitouchInputDevice()
{
}
void MultitouchInputDevice::start()
{
m_pMutex = MutexPtr(new boost::mutex);
}
vector<EventPtr> MultitouchInputDevice::pollEvents()
{
lock_guard lock(*m_pMutex);
vector<EventPtr> events;
vector<TouchStatusPtr>::iterator it;
// cerr << "--------poll---------" << endl;
for (it = m_Touches.begin(); it != m_Touches.end(); ) {
// cerr << (*it)->getID() << " ";
CursorEventPtr pEvent = (*it)->pollEvent();
if (pEvent) {
events.push_back(pEvent);
if (pEvent->getType() == Event::CURSOR_UP) {
it = m_Touches.erase(it);
} else {
++it;
}
} else {
++it;
}
}
// cerr << endl;
return events;
}
int MultitouchInputDevice::getNumTouches() const
{
return m_TouchIDMap.size();
}
TouchStatusPtr MultitouchInputDevice::getTouchStatus(int id)
{
map<int, TouchStatusPtr>::iterator it = m_TouchIDMap.find(id);
if (it == m_TouchIDMap.end()) {
return TouchStatusPtr();
} else {
return it->second;
}
}
void MultitouchInputDevice::addTouchStatus(int id, TouchEventPtr pInitialEvent)
{
TouchStatusPtr pTouchStatus(new TouchStatus(pInitialEvent));
m_TouchIDMap[id] = pTouchStatus;
m_Touches.push_back(pTouchStatus);
}
void MultitouchInputDevice::removeTouchStatus(int id)
{
unsigned numRemoved = m_TouchIDMap.erase(id);
AVG_ASSERT(numRemoved == 1);
}
void MultitouchInputDevice::getDeadIDs(const set<int>& liveIDs, set<int>& deadIDs)
{
map<int, TouchStatusPtr>::iterator it;
for (it = m_TouchIDMap.begin(); it != m_TouchIDMap.end(); ++it) {
int id = it->first;
set<int>::const_iterator foundIt = liveIDs.find(id);
if (foundIt == liveIDs.end()) {
deadIDs.insert(id);
}
}
}
glm::vec2 MultitouchInputDevice::getTouchArea() const
{
return m_TouchArea;
}
IntPoint MultitouchInputDevice::getScreenPos(const glm::vec2& pos) const
{
return IntPoint(int(pos.x * m_TouchArea.x + m_TouchOffset.x + 0.5),
int(pos.y * m_TouchArea.y + m_TouchOffset.y) + 0.5);
}
boost::mutex& MultitouchInputDevice::getMutex()
{
return *m_pMutex;
}
}
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